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Neural stem cells differentiating to astrocytes (green) and sites of growth hormone receptor shown in red. There are two basic types of stem cell: adult stem cells, which are limited in their ability to differentiate, and embryonic stem cells (ESCs), which are pluripotent and have the capability of differentiating into any cell type.
A study reported that newly made cells in the adult mouse hippocampus can display passive membrane properties, action potentials and synaptic inputs similar to the ones found in mature dentate granule cells. These findings suggested that these newly made cells can mature into more practical and useful neurons in the adult mammalian brain. [33]
Neural stem cells have been identified in the neurogenic brain regions, where neurogenesis is constitutively ongoing, but also in the non-neurogenic zones, such as the midbrain and the striatum, where neurogenesis is not thought to occur under normal physiological conditions. [101]
A flask containing human cerebral organoids. A neural, or brain organoid, describes an artificially grown, in vitro, tissue resembling parts of the human brain.Neural organoids are created by culturing pluripotent stem cells into a three-dimensional culture that can be maintained for years.
During the formation of the neural tube, neuroepithelial cells undergo symmetric proliferative divisions that give rise to two new neuroepithelial cells. At a later stage of brain development, neuroepithelial cells begin to self renew and give rise to non-stem cell progenitors, such as radial glial cells simultaneously by undergoing asymmetric ...
It harbors the largest population of proliferating cells in the adult brain of rodents, monkeys and humans. [12] In 2010, it was shown that the balance between neural stem cells and neural progenitor cells (NPCs) is maintained by an interaction between the epidermal growth factor receptor signaling pathway and the Notch signaling pathway. [13]
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